Notice: Undefined index: user_login_method in /xxx/x/xxx.com/gl160/system/classes/config.class.php on line 390

Notice: Undefined index: user_login_method in /xxx/x/xxx.com/gl160/system/classes/config.class.php on line 391

Notice: Undefined index: user_login_method in /xxx/x/xxx.com/gl160/system/classes/config.class.php on line 392

Warning: Cannot modify header information - headers already sent by (output started at /xxx/x/xxx.com/gl160/system/classes/config.class.php:390) in /xxx/x/xxx.com/public_html/gl160/admin/install/index.php on line 497Installation Support

I tried using both php4 and php5. During the first attempt, regardless of mysql version, it seems to do the db setup but then it tells me that there is already a DB set up and wants me to delete / drop the tables and try again. Then it gives me the error:

Notice: Undefined index: user_login_method in /homepages/28/x/htdocs/x/system/classes/config.class.php on line 390

Notice: Undefined index: user_login_method in /homepages/28/x/htdocs/x/system/classes/config.class.php on line 391

Notice: Undefined index: user_login_method in /homepages/28/x/htdocs/x/system/classes/config.class.php on line 392

Warning: Cannot modify header information - headers already sent by (output started at /homepages/28/d92716035/htdocs/x/system/classes/config.class.php:390) in /homepages/28/x/htdocs/x/public_html/admin/install/index.php on line 497Installation Support